CHANNEL VISION AB-404 A-bus Panel Distribution Module Accepts source from AB-202 and distributes to four zones Provides power, status and IR distribution to all locations Output connector for system expansion Wall Dock (2-gang): 4.88W x 5.14H x1.24D (front) Wall Dock and Keypad(3-gang): 6.73W x 5.14H x 1.24D (front) Recommended Max. Cable Length: 250ft. Rear Depth: 1.56 inch